KTeV KL->pi+-e-+nu e+e- plots

diagram7.eps,
diagram7.pdf
FIG.1: Processes contributing to the KL->pi+-e-+nu e+e- decay: the virtural photon comes (a) from the charged pion, (b) from the Ke3 electron, and (c) from the kaon decay vertex. The process (c) includes the structure dependent (SD) amplitudes. The exchange diagrams have veen omitted for clarity.
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pp0kine_acc_54_7705_logww.eps,
pp0kine_acc_54_7705_logww.pdf
FIG.2: The k+-0 distributiosn for data and MC after all analysis requirements except for 'k+-0'. The vertical line and arrow show the accepted region for the signal candidates (k+-0 < -0.002 GeV2/c2). The disagreement betweendata and MC in the range k+-0>0.02GeV2/c2 does not affect the background estimate in the signal region. Data-MC comparisons between many other distributions in teh accepted k+-0 region show good agreement leading us to conclude that the backgrounds are well-modeled in the region of interest.
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